Cotton-gin.



J. WOOLDRIDGE.

COTTON GIN.

APPLICATION FILED JAN. 5. 1914.

Patented Jan. 5,

(Mm $00M? Witnesses Attorneys THE NORRIS PETERS 60.. PHOT0L!THCL. IvAS -IINGTON. D. C.

5 TD TATE PATN QJFFTQEQ JOHN WOOLDRIDGE, 0F ROCKDALE, TEXAS, ASSIGNOR 0F FIFTY-ONE ONE-HUNDBEIDTHS T0 LEONARD ISAACS, OF ROCKDALE, TEXAS.

COTTON-GIN.

Application filed January 5, 1914.

To all whom it may concern:

3e it known that I, JOHN Woononinen, a citizen of the United States, residing at ltockdale, in the county of Milam and State of Texas, have invented a new and useful Cotton-Gin, of which the following is a specification.

The present invention appertains generally to cotton gins, and aims to provide novel means for facilitating the ginning of theseed cotton.

l t is the object of the present invention to provide unique means for facilitating the removal of the lint from the saw, whereby the brush will be relieved of its duty to a considerable extent, thereby increasing the ei'iiciency of the ginning action.

A further object of the present invention is to provide means whereby the air suction may be employed for assisting in removing the lint from the saw, prior to and simultaneously with the removal of the lint by the brush.

It is also within the spirit of the invention to provide means of the character indicated, which may readily be embodied in the prevailing or standard types of cotton gins, without necessitating any radical alterations or changes, and without entailing any appreciable expense, the present invention being comparatively simple and inexpensive in construction, as well as simple, practical and etlicient in its use.

With the foregoing general objects outlined, and with other objects in view, which will be apparent as the nature of the invention is better understood, the present invention resides in the combination and arrangement of parts and in the details of construcon hereinafter described and claimed, it being understood that changes in the pre' cise embodiment of the invention herein disclosed can be made within the scope of What is claimed without departing from the spirit of the invention.

The invention has been illustrated in its preferred embodiment in the accompanying drawing, wherein the figure is a sectional view of an ordinary or prevailing type of cotton gin, embodying the present improvements.

In the cotton gin as illustrated, a pair of multiple saws are employed, the upper saw being designated by the numeral 1, and the lower saw by the numeral 1 The usual Specification of Letters Patent.

Patented J an. 5, 1915.

Serial No. 810,478.

brushes 2 and 2 cooperate with the respective saws l and 1 for removing the lint from the saws. The gin also includes a lint flue 3 having the openings l and at leading to the spaces between the brushes 2 and 2 and the underlying mote boards or concaves 5 and 5 respectively. The foregoing structure or arrangement is common in prevailing or standard types of cotton gins, and need not be described at length, it being understood that the several parts above described extend the entire length of the gin stand, as usual.

In carrying out the present invention, the brushes 2 and 2 are covered by the circular boxes or hoods 6 and 6 respectively, which extend from the openings a and at respectively to a point directly adjoining the contacting portions of the respective cooperating saws and brushes. The hoods 6 and 6 fit snugly over the brushes, whereby the strength of the air currents through the cooperating portions of the saws and brushes is greatly increased.

The gin structure includes the boards 8 and 8 disposed adjoining the respective saws l and l with their free edges terminating short of the hoods 6 and 6 respectively, to provide openings 9 and 9 in advance of the cooperating or contacting portions of respective saws and brushes.

Valves or dividing boards 7 and 7 are hinged or pivoted to the free edges of the respective boards 8 and 8, and have their free edges projecting inwardly toward the respective edges of the hoods 6 and 6, re spectively, or toward the contacting portions of the respective brushes and saws.

The valves or dividing boards 7 and 8 may be adjusted or set at various positions, by any well known means, which need not be described or illustrated in detail.

Particular attention is directed to the fact that there is an air passage between each of the boards 8 and 8, and the corresponding saw, which air passage extends between the corresponding dividing board or valve and the corresponding saw to the contacting portions of the respective saw and brush. It is also to be observed that each hood projects beyond the corresponding dividing board or valve, to a point directly adjacent the contacting portions of the corresponding brush and saw, the corresponding dividing board or valve being svvingable to and from the outer side of the hood, to control the air currents through the corresponding inlets 9 or 9, and the corresponding passage between the board 8 or 8 and the adjacent saw.

In operation the air will be drawn inwardly through the openings or slots 9 and 9 to and between the cooperating portions of the saws and brushes. The inlet or air through the openings or slots 9 and 9 may be controlled by properly adjusting the valves or dividing boards 7 and 7, as will be obvious. It is also apparent that air will be drawn from over the saws, as in the present cotton gins, the course oi the air being indicated by dot and dash arrows in the drawing, while the direction of rotation of the saws and brushes are indicated by full line arrows.

As a result of the admission of the currents of air through the openings or slots 9 and 9, and from over the tops of the saws, the currents or streams of air will converge or meet at the periphery of the saws directly in advance of the contacting portions of the saws and brushes, whereby the air suction will greatly facilitate the loosening and removal of the lint from the saws. The eddies set up by the currents of air at the free edge or the valves or dividing boards 7 and 7 will serve to loosen and release the lint from the saws, whereby the brushes 2 and 2 will be greatly relieved of the duty of removing the lint from the saws.

lVith the provision of the improvements above described, the brushes in being relieved of a great portion of their duty, may be rotated much slower than usual, and fur thermore, the suction at the forward or free edges of the mote boards or concaves 5 and 5 will be reduced, thereby reducing the tendency to draw the motes, dust and other extraneous matter back into the gin to be carried out with the lint. This also enables the brushes to be employed from throwing the motes and extraneous matter away from the saws and over the edges of the mote boards, as indicated by the dotted line arrows.

It is evident that the valves or dividing boards 7 and 7, as well as the openings or slots 9 and 9 extend the full length of the gin stand, or are coextensive with the saws and brushes, and if desired, the openings or slots 9 and 9 may each be in the form of a series of apertures or slots. with the same effect.

From the foregoing, the advantages of the present improvements will be obvious to those skilled in the art, it being observed that the objects aimed at have been carried out satisfactorily, whereby the ginning of the seed cotton will be facilitatechor whereby the lint will be readily and effectively removed from the saws. As a result, the character or quality of the cotton given oif by the gin will be superior to that given off by the ordinary gin.

Having thus described the invention, what is claimed as new is 1. In a cotton gin, a saw, a brush cooperating therewith, a hood disposed snugly over the brush and projecting toward the contacting portions of the saw and brush, a board disposed adjoining the saw and terminating short of the said hood, there being an air passage between the said board and saw, and an air inlet between the said board and hood, and a valve hinged to the said board and projecting toward the contacting portions of the saw and brush to control the air currents through the said passage and inlet.

2. In a cotton gin, a saw, a brush cooperating therewith, a hood disposed snugly over the brush and projecting toward the contacting portions of the saw and brush, a board disposed adjoining the saw and terminating short of the said hood, there being an air passage between the said board and saw, and an air inlet between the said board and brush, and a valve hinged to the said board and projecting toward the contacting portions of the saw and brush to control the air currents through the said passage and inlet, the hood projecting beyond the valve to a point directly adjacent the contactingportions of thebrush and saw, and the valve being swingable to and from the outer side of the hood.

In testimony that I claim the foregoing as my own, I have hereto afiiXed my signature in the presence of two witnesses.

JOHN W OOLDRIDGE. Witnesses:

B. W. BALDRIDGE, S. G. Honcn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

